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| author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2020-06-23 09:27:23 +0200 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2020-06-26 14:30:28 +0100 |
| commit | 586f495b1e78c27e141ff432dd971eb41866fb80 (patch) | |
| tree | 423ef855e8f799d22ece759b884007013d73d0b1 | |
| parent | d82ab2931d14c1d8aa27a330b03fe5bf944130cf (diff) | |
| download | qemu-586f495b1e78c27e141ff432dd971eb41866fb80.zip qemu-586f495b1e78c27e141ff432dd971eb41866fb80.tar.gz qemu-586f495b1e78c27e141ff432dd971eb41866fb80.tar.bz2 | |
hw/misc/pca9552: Model qdev output GPIOs
The PCA9552 has 16 GPIOs which can be used as input,
output or PWM mode. QEMU models the output GPIO with
the qemu_irq type. Let the device expose the 16 GPIOs
to allow us to later connect LEDs to these outputs.
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20200623072723.6324-10-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | hw/misc/pca9552.c | 6 | ||||
| -rw-r--r-- | include/hw/misc/pca9552.h | 1 |
2 files changed, 7 insertions, 0 deletions
diff --git a/hw/misc/pca9552.c b/hw/misc/pca9552.c index 1c3ad57..80caa9e 100644 --- a/hw/misc/pca9552.c +++ b/hw/misc/pca9552.c @@ -17,6 +17,7 @@ #include "hw/qdev-properties.h" #include "hw/misc/pca9552.h" #include "hw/misc/pca9552_regs.h" +#include "hw/irq.h" #include "migration/vmstate.h" #include "qapi/error.h" #include "qapi/visitor.h" @@ -111,9 +112,11 @@ static void pca955x_update_pin_input(PCA955xState *s) switch (config) { case PCA9552_LED_ON: + qemu_set_irq(s->gpio[i], 1); s->regs[input_reg] |= 1 << input_shift; break; case PCA9552_LED_OFF: + qemu_set_irq(s->gpio[i], 0); s->regs[input_reg] &= ~(1 << input_shift); break; case PCA9552_LED_PWM0: @@ -374,11 +377,14 @@ static void pca955x_initfn(Object *obj) static void pca955x_realize(DeviceState *dev, Error **errp) { + PCA955xClass *k = PCA955X_GET_CLASS(dev); PCA955xState *s = PCA955X(dev); if (!s->description) { s->description = g_strdup("pca-unspecified"); } + + qdev_init_gpio_out(dev, s->gpio, k->pin_count); } static Property pca955x_properties[] = { diff --git a/include/hw/misc/pca9552.h b/include/hw/misc/pca9552.h index bf1a589..600356f 100644 --- a/include/hw/misc/pca9552.h +++ b/include/hw/misc/pca9552.h @@ -27,6 +27,7 @@ typedef struct PCA955xState { uint8_t pointer; uint8_t regs[PCA955X_NR_REGS]; + qemu_irq gpio[PCA955X_PIN_COUNT_MAX]; char *description; /* For debugging purpose only */ } PCA955xState; |